Following this great battle where General Abercromby died, he was transferred under Duke Wellington where he fought in the Napoleonic Peninsular Wars that raged from 1804 to 1815 in Spain and Portugal.
After his military service, Alexander Joseph Wolff was given a grant of land in Valcartier (Lower Canada) with his men.
When his ship docked at Halifax in 1824, he and his men made preparations for a long overland march to Quebec City in the dead of winter.
(Genealogy of Families of Valcartier, Quebec) In 1826 and 1827 he was in charge of repairs to the Portage road in Témiscouata (Lower Canada).
In autumn of 1830, after a few years of scouting for a new location, he built a new road between Métis and Lac Matapédia.